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    <h5>Process class</h5>
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      <div><h1><span class="kind-method">start</span> method</h1></div>

    <section class="multi-line-signature">
      <span class="returntype"><a href="dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="dart-io/Process-class.html">Process</a></span>&gt;</span></span>
            <span class="name ">start</span>
(<wbr><span class="parameter" id="start-param-executable"><span class="type-annotation"><a href="dart-core/String-class.html">String</a></span> <span class="parameter-name">executable</span>, </span> <span class="parameter" id="start-param-arguments"><span class="type-annotation"><a href="dart-core/List-class.html">List</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="dart-core/String-class.html">String</a></span>&gt;</span></span> <span class="parameter-name">arguments</span>, {</span> <span class="parameter" id="start-param-workingDirectory"><span class="type-annotation"><a href="dart-core/String-class.html">String</a></span> <span class="parameter-name">workingDirectory</span>, </span> <span class="parameter" id="start-param-environment"><span class="type-annotation"><a href="dart-core/Map-class.html">Map</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="dart-core/String-class.html">String</a></span>, <span class="type-parameter"><a href="dart-core/String-class.html">String</a></span>&gt;</span></span> <span class="parameter-name">environment</span>, </span> <span class="parameter" id="start-param-includeParentEnvironment"><span class="type-annotation"><a href="dart-core/bool-class.html">bool</a></span> <span class="parameter-name">includeParentEnvironment</span>: <span class="default-value">true</span>, </span> <span class="parameter" id="start-param-runInShell"><span class="type-annotation"><a href="dart-core/bool-class.html">bool</a></span> <span class="parameter-name">runInShell</span>: <span class="default-value">false</span>, </span> <span class="parameter" id="start-param-mode"><span class="type-annotation"><a href="dart-io/ProcessStartMode-class.html">ProcessStartMode</a></span> <span class="parameter-name">mode</span>: <span class="default-value">ProcessStartMode.normal</span></span> })
      
    </section>
    <section class="desc markdown">
      <p>Starts a process running the <code>executable</code> with the specified
<code>arguments</code>. Returns a <code>Future&lt;Process&gt;</code> that completes with a
Process instance when the process has been successfully
started. That <a href="dart-io/Process-class.html">Process</a> object can be used to interact with the
process. If the process cannot be started the returned <a href="dart-async/Future-class.html">Future</a>
completes with an exception.</p>
<p>Use <code>workingDirectory</code> to set the working directory for the process. Note
that the change of directory occurs before executing the process on some
platforms, which may have impact when using relative paths for the
executable and the arguments.</p>
<p>Use <code>environment</code> to set the environment variables for the process. If not
set the environment of the parent process is inherited. Currently, only
US-ASCII environment variables are supported and errors are likely to occur
if an environment variable with code-points outside the US-ASCII range is
passed in.</p>
<p>If <code>includeParentEnvironment</code> is <code>true</code>, the process's environment will
include the parent process's environment, with <code>environment</code> taking
precedence. Default is <code>true</code>.</p>
<p>If <code>runInShell</code> is <code>true</code>, the process will be spawned through a system
shell. On Linux and OS X, <code>/bin/sh</code> is used, while
<code>%WINDIR%\system32\cmd.exe</code> is used on Windows.</p>
<p>Users must read all data coming on the <a href="dart-io/Process/stdout.html">stdout</a> and <a href="dart-io/Process/stderr.html">stderr</a>
streams of processes started with <code>Process.start</code>. If the user
does not read all data on the streams the underlying system
resources will not be released since there is still pending data.</p>
<p>The following code uses <code>Process.start</code> to grep for <code>main</code> in the
file <code>test.dart</code> on Linux.</p>
<pre class="language-dart"><code>Process.start('grep', ['-i', 'main', 'test.dart']).then((process) {
  stdout.addStream(process.stdout);
  stderr.addStream(process.stderr);
});
</code></pre>
<p>If <code>mode</code> is <a href="dart-io/ProcessStartMode/normal-constant.html">ProcessStartMode.normal</a> (the default) a child
process will be started with <code>stdin</code>, <code>stdout</code> and <code>stderr</code>
connected.</p>
<p>If <code>mode</code> is <a href="dart-io/ProcessStartMode/detached-constant.html">ProcessStartMode.detached</a> a detached process will
be created. A detached process has no connection to its parent,
and can keep running on its own when the parent dies. The only
information available from a detached process is its <code>pid</code>. There
is no connection to its <code>stdin</code>, <code>stdout</code> or <code>stderr</code>, nor will
the process' exit code become available when it terminates.</p>
<p>If <code>mode</code> is <a href="dart-io/ProcessStartMode/detachedWithStdio-constant.html">ProcessStartMode.detachedWithStdio</a> a detached
process will be created where the <code>stdin</code>, <code>stdout</code> and <code>stderr</code>
are connected. The creator can communicate with the child through
these. The detached process will keep running even if these
communication channels are closed. The process' exit code will
not become available when it terminated.</p>
<p>The default value for <code>mode</code> is <code>ProcessStartMode.normal</code>.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">external static Future&lt;Process&gt; start(
    String executable, List&lt;String&gt; arguments,
    {String workingDirectory,
    Map&lt;String, String&gt; environment,
    bool includeParentEnvironment: true,
    bool runInShell: false,
    ProcessStartMode mode: ProcessStartMode.normal});</code></pre>
    </section>

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